CN213265329U - Generator magnetic pole lifting device - Google Patents
Generator magnetic pole lifting device Download PDFInfo
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- CN213265329U CN213265329U CN202022082277.7U CN202022082277U CN213265329U CN 213265329 U CN213265329 U CN 213265329U CN 202022082277 U CN202022082277 U CN 202022082277U CN 213265329 U CN213265329 U CN 213265329U
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- hoisting
- magnetic pole
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- lifting
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- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to a generator magnetic pole hoisting tool, which comprises a hoisting panel, a hoisting base, a back balance pressing plate and a side guard plate; the hoisting panel and the hoisting base are oppositely arranged, the two side protection plates are oppositely arranged, and the two side protection plates are respectively connected with the hoisting panel and two sides of the hoisting base to form a frame structure; one end of the back balance pressing plate is connected with one side of the hoisting panel; and the hoisting panel is provided with hoisting points. The utility model aims at providing a generator magnetic pole lifting device, this instrument makes the magnetic pole do not have the phenomenon of rocking, droing lifting by crane the in-process.
Description
Technical Field
The utility model belongs to the technical field of the generator appurtenance, concretely relates to generator magnetic pole lifting device.
Background
The service cycle of the generator rotor is long, and the problems of roundness, verticality, eccentricity, elevation and the like of the rotor occur when the generator rotor is overhauled and detected in the unit A repairing and reforming process. The parameter phenomena of roundness, magnetic pole verticality, eccentricity and elevation are related to the uniformity of an air gap of a unit and directly affect the operation stability of the unit, so that magnetic poles need to be hoisted in the elevation processing process of the rotor magnetic poles, the key process of rotor assembly is realized when the rotor magnetic poles are hoisted, the magnetic poles are 620mm long, 430mm wide and 2040mm high, 3.7 tons in weight are realized, great care is taken when the magnetic poles are hoisted, the magnetic poles, a magnetic winding, a damping ring and other parts are prevented from being damaged, the magnetic poles have no hoisting points and cannot be directly hoisted. In the study of the hoisting method, the hoisting danger is high by binding with a hoisting belt, the magnetic pole is easy to be damaged when the magnetic pole is laid down, so that the magnetic pole is very troublesome and needs to be consumed for a long time when being bound, the magnetic pole is inconvenient and unsafe when being moved, the magnetic pole is very easy to incline, great difficulty is caused to the installation work of the rotor magnetic pole, even the magnetic pole possibly slips, the economic loss and the possibility of hurting people are caused, and the hanging efficiency of the rotor magnetic pole is very low.
The magnetic pole key of power plant unit discovery is not hard up in the enlargement type overhaul, and magnetic pole installation elevation exceeds standard, needs hoist and mount rotor magnetic pole, because the magnetic pole does not have hoisting point, hoist and mount magnetic pole position is narrow and small, limited, demolishs and the installation is complicated, and the safe risk is high, and its work progress, installation quality seriously influence the maintenance work thread progress, time limit and the safe operation of unit, so carry out research and manufacture to magnetic pole lifting device.
In order to ensure that the magnetic pole hoisting task is carried out safely and efficiently, a novel magnetic pole hoisting tool is researched and developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a generator magnetic pole lifting device, this instrument makes the magnetic pole do not have the phenomenon of rocking, droing lifting by crane the in-process.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
a generator magnetic pole hoisting tool comprises a hoisting panel, a hoisting base, a back balance pressing plate and a side guard plate; the hoisting panel and the hoisting base are oppositely arranged, the two side protection plates are oppositely arranged, and the two side protection plates are respectively connected with the hoisting panel and two sides of the hoisting base to form a frame structure; one end of the back balance pressing plate is connected with one side of the hoisting panel; and the hoisting panel is provided with hoisting points.
Optionally, the back balance pressing plate and the hoisting panel form a T-shaped structure.
Optionally, the end of the side guard plate is provided with a guard plate fastening bolt, and the guard plate fastening bolt passes through a mounting hole on the hoisting panel to be connected.
Optionally, the back balance pressing plate is connected with the hoisting panel through a first connecting screw.
Optionally, the side guard plate is connected with the hoisting base through a second connecting screw.
Optionally, a plurality of rows of mounting holes for the second connecting screws to pass through are formed in the side guard plate.
Optionally, the area of the hoisting panel is larger than that of the hoisting base.
The utility model discloses the advantage as follows:
the utility model discloses when magnetic pole lifting device, utilize the frame form to surround the magnetic pole, utilize the both sides bolt to adjust the distance of hoist and mount panel and hoist and mount base, the magnetic pole back is two T tail groove structures, utilizes the balanced clamp plate in hoist and mount back to block two T tail grooves, then carries out bolted connection with hoist and mount panel to make lifting device and magnetic pole fasten and surround, make the magnetic pole not have and rock, the obscission lifting by crane the in-process. Through this rotor magnetic pole lifting device, the handling mode of magnetic pole has been optimized, has improved the ability to equipment defect management, has improved the factor of safety environment that the rotor magnetic pole overhauld the hoist and mount, has laid the basis for guaranteeing the safe and stable operation of unit.
Drawings
Fig. 1 is an overall assembly view of a magnetic pole hoisting tool;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
wherein the reference numerals represent the following:
1. hoisting the panel;
2. hoisting a base;
3. hoisting points;
4. a back balance pressing plate;
5. a first connecting screw;
6. a guard plate fastening bolt;
7. side guard plates;
8. and a second connecting screw.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, the utility model relates to a generator magnetic pole hoisting tool, which comprises a hoisting panel 1, a hoisting base 2, a back balance pressing plate 4 and a side guard plate 7; the hoisting panel 1 and the hoisting base 2 are oppositely arranged, the two side protection plates 7 are oppositely arranged, and the two side protection plates 7 are respectively connected with the hoisting panel 1 and two sides of the hoisting base 2 to form a frame structure; one end of the back balance pressing plate 4 is connected with one side of the hoisting panel 1; and a lifting point 3 is arranged on the lifting panel 1.
The end part of the side guard plate 7 is provided with a guard plate fastening bolt 6, and the guard plate fastening bolt 6 penetrates through a mounting hole in the hoisting panel 1 to be connected. The back balance pressing plate 4 is connected with the hoisting panel 1 through a first connecting screw 5. The side guard plate 7 is connected with the hoisting base 2 through a second connecting screw 8.
The side guard plate 7 is provided with a plurality of rows of mounting holes for the second connecting screws 8 to pass through. The area of the hoisting panel 1 is larger than that of the hoisting base 2.
A hoisting panel 1 is designed above the magnetic pole and used for hoisting a magnetic pole hoisting point by a crown block, bolt holes are additionally arranged on the side edge of the panel, the back balance pressing plate is used for fixing, and two through holes are drilled on the panel, and the guard plate is fastened.
A hoisting base 2 is designed below the magnetic pole and used for bearing the whole weight of the magnetic pole, and bolt holes and guard plates are additionally arranged on two sides of the base for fixing.
The side backplate 7 is designed on both sides of the magnetic pole to prevent the magnetic pole from shaking left and right, the lower base is connected with the lower bolt hole, and the upper bolt is fastened and compressed with the upper panel.
The back of the magnetic pole is of a double-T tail structure, and a back balance pressure plate 4 is designed to prevent the magnetic pole from shaking forwards and backwards. The magnetic pole hoisting tool is integrally connected.
When magnetic pole lifting device, utilize the frame form to surround the magnetic pole, utilize the distance of both sides bolt adjustment hoist and mount panel and hoist and mount base, the magnetic pole back is two T tail groove structures, utilizes hoist and mount back balanced clamp plate to block two T tail grooves, then carries out bolted connection with the hoist and mount panel to make lifting device and magnetic pole fasten and surround, make the magnetic pole not have the phenomenon of rocking, droing lifting by crane the in-process. In the installation dismantlement in-process, the magnetic pole is the state of erectting, need fall the magnetic pole and carry out work when overhauing and cleaning the magnetic pole, because the magnetic pole height is 2 meters more, makes the magnetic pole rub, damage with ground easily when falling to destroy magnetic pole structure, researched and developed a magnetic pole and fallen the device to this difficult point, make the magnetic pole fall work more stable, high-efficient, safety.
Magnetic pole lifting tool installation description:
the magnetic pole hoisting panel 1 is placed above the magnetic pole, and the middle of the magnetic pole and the hoisting panel 1 is padded firmly by a batten cotton felt. The magnetic pole hoisting base 2 is propped against the lower end of the magnetic pole of the rotor by a jack, the middle part is filled with a wood felt, and the magnetic pole hoisting base is pressed tightly by the jack. The two sides of the magnetic pole are connected with the hoisting panel and the hoisting base by the side pressing plates 7 and are fastened by the bolts 6 of the hoisting panel 1 and the bolts 8 of the hoisting base 2. When the hoisting point 3 is connected with a crown block to hoist the magnetic pole to 700mm height, the hoisting is stopped, the balance pressing plate 4 at the back of the magnetic pole is installed, and the balance pressing plate is fastened with the hoisting panel 1 by a bolt 5.
And (3) actually hoisting the magnetic pole on site:
1, the magnetic pole hoisting panel is placed above the magnetic pole by a crown block, and the middle of the magnetic pole and the hoisting panel is filled with a batten cotton felt.
2, hoisting the magnetic pole by a jack, namely hoisting the magnetic pole by a base to prop against the lower end of the magnetic pole of the rotor, and compacting the magnetic pole by a batten felt in the middle by the jack.
3 connect the hoist and mount panel with the hoist and mount base at the magnetic pole both sides with the clamp plate, fasten with the nut, prevent that the magnetic pole from rocking about.
And 4, after the magnetic poles are firmly supported, removing the magnetic pole keys of the generator rotor.
And 5, after the 2 pairs of magnetic pole keys on the magnetic pole are completely pulled out, when the magnetic pole is lifted by 700mm by using a crown block, the lifting is stopped, the magnetic pole back balance pressing plate is installed, the back balance pressing plate is inserted into the double T-shaped grooves on the back of the magnetic pole and is fastened with the magnetic pole hoisting panel by using bolts, and the magnetic pole is prevented from shaking forwards and backwards.
6 when the overhead traveling crane promoted generator rotor magnetic pole 1200mm, at magnetic pole and clamp plate installation fastening area, prevented the magnetic pole slippage.
And 7, slowly lifting the magnetic poles of the generator rotor to completely separate the magnetic poles from the rotor.
8, hoisting the magnetic pole of the generator rotor to an installation room, installing a laying tool and compacting by using felt.
9 slowly drop down to the ground with a crown block.
10, the generator magnetic pole laying tool is removed, and the work is finished.
After the project is finished, the reliability of hoisting the magnetic poles of the rotor of the unit is improved. The lifting can be completed by 8 persons according to the original method, and the lifting can be completed by only 2 persons 10 days in advance by using the lifting tool at present. The number of workers is as follows: 8 persons; time consumption: 20 days; labor cost: 200 yuan/day, the original total labor cost is 200 × 20 × 8 to 32000 yuan, the current labor cost is 200 × 10 × 2 to 4000 yuan, and 28000 yuan is saved. Labor and materials are greatly saved.
After the project is implemented, the overhaul period is saved by 10 days in the year, the accumulated increased power generation quantity is 4800 ten thousand Kw/h, and the power is calculated according to 0.3 yuan per degree, wherein 4800 x 0.3 x 1440; increase the profit by 1440 ten thousand yuan.
The generator rotor magnetic pole hoisting tool has an obvious effect in magnetic pole overhaul of an Ankang hydropower station, not only improves the safety of equipment, but also has objective economic benefit. According to the magnetic pole installation process, the height adjustment is reliable and safe, a magnetic pole hoisting tool is specially made, the working efficiency of hoisting the magnetic pole is improved, the potential safety hazard on site is reduced, and the method has popularization value in the same type of magnetic pole overhaul. Meanwhile, when the rotor magnetic pole is laid down for maintenance, a magnetic pole laying tool is manufactured, the efficiency of laying down the magnetic pole of the generator is improved when the magnetic pole is laid down, the generator is safer, more stable and more efficient, and the working range is greatly expanded. The technology has the characteristics of short construction period and high efficiency, and the universality, the practicability, the safety and the economy of the hoisting tool can be ensured to be implemented in the vertical large-scale water-turbine generator set in the aspect of technical application, so that the technology has certain popularization and reference values.
Through this rotor magnetic pole lifting device, the handling mode of magnetic pole has been optimized, has improved the ability to equipment defect management, has improved the factor of safety environment that the rotor magnetic pole overhauld the hoist and mount, has laid the basis for guaranteeing the safe and stable operation of unit.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A generator magnetic pole hoisting tool is characterized by comprising a hoisting panel (1), a hoisting base (2), a back balance pressing plate (4) and a side guard plate (7); the hoisting panel (1) and the hoisting base (2) are oppositely arranged, the two side guard plates (7) are oppositely arranged, and the two side guard plates (7) are respectively connected with the hoisting panel (1) and two sides of the hoisting base (2) to form a frame structure; one end of the back balance pressing plate (4) is connected with one side of the hoisting panel (1); and a lifting point (3) is arranged on the lifting panel (1).
2. Generator magnetic pole lifting tool according to claim 1, characterized in that the back balancing pressure plate (4) forms a T-shaped structure with the lifting panel (1).
3. The generator magnetic pole hoisting tool of claim 1, characterized in that the end of the side guard (7) is provided with a guard fastening bolt (6), and the guard fastening bolt (6) passes through the mounting hole on the hoisting panel (1) for connection.
4. Generator magnetic pole lifting tool according to claim 1, characterized in that the back balancing pressure plate (4) is connected with the lifting panel (1) by means of first connecting screws (5).
5. The generator magnetic pole hoisting tool of claim 1, characterized in that the side guard (7) is connected with the hoisting base (2) by a second connecting screw (8).
6. A generator pole lifting tool as claimed in claim 5, characterised in that the side guard (7) is provided with a plurality of rows of mounting holes for the second connecting screws (8) to pass through.
7. Generator pole lifting tool according to claim 1, characterized in that the lifting panel (1) has an area larger than the lifting base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022082277.7U CN213265329U (en) | 2020-09-21 | 2020-09-21 | Generator magnetic pole lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022082277.7U CN213265329U (en) | 2020-09-21 | 2020-09-21 | Generator magnetic pole lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213265329U true CN213265329U (en) | 2021-05-25 |
Family
ID=75944882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022082277.7U Active CN213265329U (en) | 2020-09-21 | 2020-09-21 | Generator magnetic pole lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213265329U (en) |
-
2020
- 2020-09-21 CN CN202022082277.7U patent/CN213265329U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240517 Address after: 100032 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: STATE GRID CORPORATION OF CHINA Country or region after: China Patentee after: State Grid Shaanxi Electric Power Co., Ltd. Ankang Hydropower Co. Patentee after: National Network (Xi'an) Environmental Protection Technology Center Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: STATE GRID CORPORATION OF CHINA Country or region before: China Patentee before: STATE GRID SHAANXI ELECTRIC POWER COMPANY ANKANG HYDROELECTRIC POWER GENERATION Co. |
|
| TR01 | Transfer of patent right |